SH-3マイコン

apt-getやwgetのためにプロキシサーバを設定する。

# export http_proxy=http://proxy:8080

「起動途中でエラーや警告が表示されるが起動には問題ないので無視する」ようなことはしません

次の4点を行うと「起動途中でエラーや警告が表示される」のを解消することができる。

udevのアンインストール

udevはカーネルのバージョンが2.6.15以降でないと使えないようなのでアンインストールする。

# apt-get --purge remove udev

modules.depの作成

# cd /lib/modules/
# mkdir 2.6.12.6
# cd 2.6.12.6/
# touch modules.dep

カーネルをリビルドすることでも作成される。

tmpfsを有効にする

カーネルをリビルドすることで行う。

slram: not enough parameters.

カーネルのリビルドすることで出なくなる。

kernelのセルフビルド

ソースの取得

# cd /usr/src
# wget http://www.ring.gr.jp/pub/linux/kernel.org/kernel/v2.6/linux-2.6.12.6.tar.bz2
# apt-get install bzip2
# tar jxf linux-2.6.12.6.tar.bz2

パッチの適用

# wget http://mes.sourceforge.jp/mes2/linux/lsr/linux-2.6.12.6-shmin-4.patch
# apt-get install patch
# patch linux-2.6.12.6-shmin-4.patch

# apt-get install dpkg-dev binutils gcc make libncurses5-dev
# apt-get install gcc-3.4

# make ARCH=sh CC=gcc-3.4 menuconfig
# make ARCH=sh CC=gcc-3.4
# make ARCH=sh CC=gcc-3.4 modules_install
# mount /dev/shmmc1 /boot
# cp -a vmlinux /boot

tmpfsを有効にする

起動

Linux boot loader 2009/4/11, build by Eclipse.
initrd loading..
vmlinux loading..................
Linux version 2.6.12.6 (root@ucat1) (gcc version 3.4.6 (Debian 3.4.6-5)) #8 Mon Feb 1 15:36:40 JST 2010
This is SH7706LAN board Ver 2.0
Built 1 zonelists
Kernel command line: mem=32M console=ttySC1,115200 root=/dev/shmmc2
PID hash table entries: 256 (order: 8, 4096 bytes)
CPU clock: 120.00MHz
Bus clock: 40.00MHz
Module clock: 40.00MHz
Interval = 100000
Console: colour dummy device 80x25
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 30304k/32768k available (1498k kernel code, 2400k reserved, 216k data, 68k init)
Mount-cache hash table entries: 512
CPU: SH7706
checking if image is initramfs...it isn't (no cpio magic); looks like an initrd
Freeing initrd memory: 183k freed
NET: Registered protocol family 16
SCSI subsystem initialized
SH Virtual Bus initialized
Real Time Clock Driver v1.12
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled
SuperH SCI(F) driver initialized
ttySC0 at MMIO 0xfffffe80 (irq = 25) is a sci
ttySC1 at MMIO 0xa4000150 (irq = 59) is a scif
io scheduler noop registered
io scheduler anticipatory registered
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
loop: loaded (max 8 devices)
nbd: registered device at major 43
ne.c:v1.10 9/23/94 Donald Becker (becker@scyld.com)
Last modified Nov 1, 2000 by Paul Gortmaker
NE*000 ethercard probe at 0x300: 00 18 5f 00 09 2e
eth0: NE2000 found at 0x300, using IRQ 34.
slram: not enough parameters.
SH_MMC: MMC Reset OK.
SH_MMC: SDHC Card
shmmc: shmmc1 shmmc2
SH_MMC: 3911680Kbyte 1024 blocksize
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP established hash table entries: 2048 (order: 2, 16384 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
NET: Registered protocol family 1
NET: Registered protocol family 17
NET: Registered protocol family 15
RAMDISK: Compressed image found at block 0
EXT2-fs warning: checktime reached, running e2fsck is recommended
VFS: Mounted root (ext2 filesystem).
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Trying to move old root to /initrd ... okay
Freeing unused kernel memory: 68k freed
INIT: version 2.86 booting
Activating swap...done.
Checking root file system...fsck 1.40-WIP (14-Nov-2006)
e2fsck 1.40-WIP (14-Nov-2006)
/dev/shmmc2: clean, 33059/483840 files, 170972/967680 blocks
done.
EXT3 FS on shmmc2, internal journal
Setting the system clock..
Cleaning up ifupdown....
Loading kernel modules...done.
Loading device-mapper support.
Checking file systems...fsck 1.40-WIP (14-Nov-2006)
done.
Setting kernel variables...done.
Mounting local filesystems...done.
Activating swapfile swap...done.
Setting up networking....
Configuring network interfaces...done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting internet superserver: inetd.
Starting periodic command scheduler: crond.

Debian GNU/Linux 4.0 ucat1 ttySC1

ucat1 login: root
Last login: Mon Feb  1 15:10:02 2010 on ttySC1
Linux ucat1 2.6.12.6 #8 Mon Feb 1 15:36:40 JST 2010 sh?!

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
ucat1:~# free
             total       used       free     shared    buffers     cached
Mem:         30620      10232      20388          0       1712       5392
-/+ buffers/cache:       3128      27492
Swap:            0          0          0